an upset victory 逆轉勝,意外勝利 upset—to defeat or overthrow an opponent that is considered more formidable, as in war, politics, or sports  1) Republican Scott Brown won a major upset victory in Tuesday's special election for the U.S. Senate seat formerly held by liberal Democrat Ted Kennedy.Brown's victory made real the once unthinkable prospect of a Republican filling the seat held by Kennedy, known as the liberal lion, for almost 47 years until his death from brain cancer in August.共和黨的史考特布朗在星期二的美國聯邦參議員補選中意外勝出,這一席次原屬前自由派的民主黨甘迺迪議員.布朗的勝利讓之前根本想像不到的事情成真,一個共和黨人居然能遞補有[自由派之獅]稱謂四十幾年的甘迺迪,他去年八月因為腦癌逝世.  2)Brown Scores Upset Victory over Coakley in Massachusetts Senate Race    布朗在麻省參議員補選中以黑馬之姿擊敗寇克莉